gnu-social/public/assets/css/base.css

:root {
    /* FONTS */
    --display-font: 'Manrope-ExtraBold', sans-serif;
    --main-font: 'Inter', sans-serif;

    /* UNITS
     * unit size      - every element should be a multiplier of this
     * main size      - used for headers and icons
     * medium size    - same as above, except that the element in question is contained in something else
     * small size     - used in common text, borders
     */
    --unit-size: 0.5rem;
    --main-size: 1.5rem;
    --medium-size: 1.125rem;
    --small-size: 1rem;

    /* colours and shadows */
    --black: #040506;
    --bg1: #383E51;
    --bg2: #434A60;
    --bg3: #5C6684;
    --white: #EEDFD4;

    --accent-blue: #8E8DBE;
    --accent-red: #FF6666;
    --accent-green: #2EC4B6;

    --shadow: 0px 0px 16px 0px #383E51;
}

/* TYPOGRAPHY */
html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1 {
    font-family: var(--display-font);
    font-size: var(--main-size);
    font-weight: 900;
    opacity: 1.00;
    letter-spacing: -0.40px;
    word-spacing: 4.00px;
}

h2 {
    font-family: var(--display-font);
    font-size: var(--medium-size);
    font-weight: 800;
    letter-spacing: -0.75px;
    word-spacing: 3.00px;
    text-transform: none;
}

h3 {
    font-family: var(--display-font);
    font-size: var(--medium-size);
    font-weight: 600;
    line-height: 1.00;
    letter-spacing: -0.20px;
    word-spacing: 1.00px;
    text-transform: none;
}

p {
    font-family: var(--main-font);
    font-size: var(--small-size);
    font-weight: 400;
    letter-spacing: -0.30px;
    word-spacing: -0.10px;
    text-transform: none;
}

ul {
    text-decoration: none;
    margin: 0;
    padding: 0;
    list-style: none;
}

li {
    margin: 0;
    padding: 0;
}

a:link {
    text-decoration: none;
    outline: 0;
    color: var(--bg3);
}

a:visited {
    outline: 0;
    color: var(--bg3);
    margin: 0;
    padding: 0;
}

a:hover {
    color: var(--accent-blue);
    transition: all 0.8s ease;
}

a:focus {
    color: var(--accent-blue);
    transition: all 0.8s ease;
}

/* DEFAULTS */
body,
html {
    display: flex;
    flex-direction: column;
    height: 100%;
    width: auto;
    color: var(--white);

    /* BLENDING BANDING IN FIREFOX */
    background-image: radial-gradient(ellipse at 50% 5%, var(--bg1), var(--bg2)),
    url(data:image/png;base64,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);
    background-blend-mode: multiply;
    background-attachment: fixed;

}

#header {
    order: 1;
    display: flex;
    justify-content: center;
    position: fixed;

    width: 100%;
    height: calc(5 * var(--unit-size));
    padding: var(--small-size);

    background-image: radial-gradient(ellipse at 50% 5%, var(--bg1), var(--bg3)),
    url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAACAAAAAgBAMAAACBVGfHAAAAElBMVEUAAACUkpSEhoSMioyMjoyEgoRr6djFAAAAAXRSTlMAQObYZgAAAAlwSFlzAAAOxAAADsQBlSsOGwAAAU1JREFUKJEVUcl1xTAIpAVLSgECXIAYUoCAX0Bi919LlCPLm5ValiOUUe2+ZRVFuYpKXFsUX9aIp0V6GtC8VRhNL0X2fikvswhKrNDhes7pbpPkufFAtI0B76LEjfc2bgdHDk6RX4A/sjt6LCylfoYpNYYJx/9COhIugsjluzN9VGZ/Hnl51jIH2ba+Ywsy2RJCFdoDe8Obw61TXGAv+ewExMRJs7gd7YcimPuk42uMqY2VJ1fK+bDL32rb7kwok/la/u7Mrz7Xf0DTssSP2Btp1ZS0zw35tM/SsJKgWNLcRh+/th1QqntwtM3Tx0LNosoBYbM3qjJFiMeLsMH2i5BcQdU3n9sJHOE1Hoqn1GA/bm4s0YkVB/y4r0PbltF32FpljXmdlOOwbDvFWkoDYLppSG4pnM6UxX3Src1lhXeU36FOu3o+R2vNaHME/wESUl9/3zMniwAAAABJRU5ErkJggg==);
    background-blend-mode: multiply;
    background-attachment: fixed;
    box-shadow: var(--shadow);
}

#instance {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    width: 100%;
}

#instance a {
    display: flex;
    color: var(--white);
    font-size: var(--main-size);
}

.icon-logo {
    margin-right: var(--small-size);
    fill: var(--white);
}

/* CONTAINS ALL ELEMENTS BESIDES HEADER */
.container {
    order: 2;
    display: flex;
    justify-content: space-evenly;

    width: 100%;
    max-height: calc(100% - (3 * var(--small-size) + var(--main-size)));
    margin-top: auto;
}

/* THE FOCUSED (middle) DIV */
.content {
    order: 2;
    display: flex;
    flex-direction: column;
    width: calc(3 * (100%/5));
    padding: var(--small-size);
}

/* EVERY SIDE PANEL DETAIL ELEMENT */
.panel {
    all: unset;
    width: calc(1 * (100%/5));
}

.panel[open] {
    height: 100%;
}

/*
[data-foo]::before {
      open: attr(data-foo) "close";
}
*/
.content {
    animation: fadeIn 200ms cubic-bezier(0, 0.55, 0.45, 1);
}

details[open] > div {
    animation: fadeIn 200ms cubic-bezier(0, 0.55, 0.45, 1);
}

@keyframes fadeIn {
    0% {
        opacity: 0;
        transform: translateY(-10px);
    }

    100% {
        opacity: unset;
        transform: none;
    }
}

/* SIDE PANELS OPEN BY DEFAULT ON DESKTOP */
@media (min-width: 900px) {
    .panel-mobile {
        display: none;
    }
}
@media (max-width: 900px) {
    .panel-desktop {
        display: none;
    }
}